Why older headlights are a 'major safety concern' for American motorists

Find yourself wondering whether your headlights are out, only to discover they've been working the whole time? It might be because the plastic covering the bulbs has become clouded or yellowed. In fact, at an average of 11 years old, the typical vehicle on the road today is generating only 22 percent of the light that it did when its headlights were new, according to a new study by AAA. "We were really shocked by the amount of deterioration in light output that we saw," said Greg Brannon, AAA's director of automotive engineering. "It's a major safety concern out on the roadways today."
Read more: https://www.usatoday.com/story/money/cars/2018/12/11/older-headlights-safety-concern-aaa-says/2263336002/?source=Snapzu